On Apr 4, 9:27 am, "David Kershaw" wrote:
Hi Tom,
If I read that correctly, I can expect more algal growth on the
glass and substrate than on the plants?
Regards wrote in message

oups.com...

http://www.blackwell-synergy.com/doi...-3646.1991.001...

Regards,
Tom Barr

Perhaps.
But you can expect more on dead or poor health plants. That much seems
to be supported.

Regards,
Tom Barr